Machine for scouring



(Model.) 7, Sheets-Sheet 1.

F. A. LOGKWOOD.

MACHINE FOR SGQURING, SETTING, 0R GLASSING LEATHER. No. 258,659.Patented May 30, 1882.

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N. PETERS, PhulwLNhugnphcr. Washington, D40.

(ModeL) 7 Sheets-Sheet 2.

F. A. LOOKWOOD.

MACHINE FOR SGOURING, SETTING, 0R GLASSING LEATHER.

No. 258,659. Patented May 30,1882.

flecZcwecZ Scale.

N. PETERS, Fmwumo n her. Washington. ac.

(ModeL) 7 Sheets-Sheet 3.

F. A. LOUKWOOD. I MACHINE FOR SOOURING, SETTING, 0R GLASSING LEATHER.

Patented May 80, 1882.

\\\\\\\\\IIIIIIIIIIIII N. FETERS. Photnlithngmphur. Washington. D. c.

(ModeL) 7 Sheets-Sheet 4.

P. A. LOGKWOOD.

MACHINE FOR SOOURING, SETTING, 0B. GLASSING LEATHER:

Patented May 30, 1882.

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fiwerz tar. Ffdazerzk' Zoo/Emmi. 6? amid-m1 N. PETERS. Phulrrulhogmphar,Wzshin um 0,0.

(Model.) 7 Sheets-Sheet 5.

F. A. LOOKWOOD.

MACHINE FOR SOOURING, SETTING, 0R GLASSING LEATHER.

No. 258,659. I Patented May 30, 1882.

N. PETERS. Pmwumo n m Wzlhinglun, o c,

(Model.) 7 SheetsSheet 6.

F. A. LOCKWOOD. MACHINE EoE SOOURING, SETTING, 0R GLASSING LEATHER.

No. 258,659. Patented May 30, 1882.

III- a Ylll W2" 6 s I Inventor: M ficiei'l't' r/iloc'kozwl N4 PETERS,FhnlvLiXhcgnphar. Wishinglnn, RC.

(ModeL) 7 Sheets-Sheet 7.

P. A LOGKWOOD. MACHINE FOR SGOURING, SETTING, 0R GLASSING LEATHER.

Patented May 30, 1882.

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0 W EW N. PEIERS. Pholo-Lilhugnphen Washinglcn, uv n am STATES lPa'rnN'rarise.

FREDERIC A. LOOKWOOD, OF BOSTON, MASSACHUSETTS.

MACHINE FOR SCOURING, SETTING, OR GLASSING LEATHER.

SPECIFIGATION forming part of Letters Patent No. 258,659, dated May 30,1882.

Application filed June 24, 1881.

To all whom it may concern:

Be it known that I, FREDERIC A. LOCK- WOOD, a citizen of the UnitedStates, residing at Boston, in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvements inMachines for Scouring, Setting, or Glassing Leather or Beaming Hides;and I do hereby declare the following to be a full, clear,and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencemarked thereon, which form a part of this specification.

My present invention is an improvementon the machine represented in theUnited States Letters Patent No. 17 9,928, granted to me July 18, 1876,to which reference may be had.

In devising my present improvements I have had primary objects in view,first, to drive the operative parts of the machine by direct positivemechanical devices in lieu of a belt, thereby insuring uniform andcertain actions of the Various agencies and reducing the power requiredto run the machine; and, second, to relieve the attendant to a greatextent of the constant care and watchfulness heretofore devolving uponhim, and enable the main functions of the machine to be controlled by asingle hand or guide lever.

In my patent referred to the beam, or that part of the truck extendedhorizontally over the skin-supporting-table, was made vertically movablein the main part of the truck,and the so-called cross-head or carriagewas made horizontally movable on ways of the said beam. Suchconstruction was objectionable for the reason that the said beam had tobe lifted when the dressing-tools were lifted, and also because of thelack of rigidity at thejunction of the beam-arms and truck. To obviatethese difiiculties I have made the beam-arms as a fixed part of thetruck, and I have divided the so-called cross-head or carriage into twoparts, one of which I herein denominate as the trundle-frame and theother as the head. This head I have made vertically adjustable withrelation to the horizontally-movable trundle-frame, and I have mountedin this head the axially-movable yoke common to my said (Model) patent,the said yoke having upon it the guiderod which receives thereciprocating tool-carrier. The head in this my present invention ismade vertically adjustable by means of a hand-operated shaft located atthe front of the machine, and such adjustment may be made during theoperation of the machine. In my present invention the truck is mademovable longitudinally with relation to the skin-supporting table bymeans of a rotating nut placed on a screw-threaded rod held in a fixedpart of the frame-work of the machine. This nut may be rotated in one orthe other direction on the said rod, and the ends of the nut actingagainst the truck to move the same longitudinally. This nut and screwenables me to move the truck positively in both directions and hold Inmy former patent the movable parts of the machine were actuated by asingle long belt extended about several active and idle pulleys, whichis objectionable because of unsteady movement, great consumption ofpower resulting from friction, and the slipping and stretching of thebelt. To obviate these difficulties I have devised a system of shaftingand gearing by which I am enabled to drive the operating parts of themachine positively. In my former patent I have two hand-levers, one tocontrol the movement of the truck on its ways and the other the movementof the so-called cross-head and carriage; and to effect an obliquemovement of the said crosshead with relation to the table it wasnecessary to move both levers simultaneously, which was very difficult,so I have herein shown a mechanical organization whereby either or allthe said movements derived by the movement of the truck on its rails andof the carriage on the track may be controlled by a single lever. I haveherein shown the carriage as driven positively by means of a rotatingscrew, as

will be hereinafter described.

' In the drawings accompanying this specifi cation, Figure 1 is a sideelevation of a ma-,

in front view of the carriage and some of its attached parts. Fig. 7 isa side view of the head of the carriage with its attached liftinglevers.Fig. 8 is a detail in plan showing the head of the carriage and meansfor lifting it, the said figure also showing part. of the trundle-framcof the carriage. Fig. 9 is a section of the screwthreaded nut or sleeveand screwshaft which in part effects the movement of the truck. Fi 10 isan edge elevation, Fig. 11 a section, and Figs. 12 and 13 side views, ofthe pulleys and gears making part of the mechanism for operating thescrew which feeds the trundle -frame and its accessories. Fig. 14 is anedge elevation, Fig. 15 a section, and Figs. 16 and 17 side views, ofthe pulleys and gears making part of the mechanism for operating thetruck. Fig. 18 is a detail showing part of the means for shipping thebelts which control the movements of the carriage and truck. Fig. 19 isa section of the bellcrank lever which rocks the shaft that puts thetruck in motion. Fi 20 shows the scraper and mechanism for cleaning thesame.

Reference being had to the above-mentioned drawings, it will be seenthat A represents a horizontal table of a size to receive one or moreskins,as occasion may demand,as, owing tothe great range and freedom ofmovement of my tool-carrier, I am not confined within arbitrary bounds,but am enabled to treat two or more skins upon one table by changing theposition of the machine with relation to the skin-supporting table, sothat while one skin is being manipulated the finished one may be removedand a fresh one substituted, byv which means I avoid the loss of timeheretofore incident to the cessation of the functions of the machinewhile a skin is thus being removed and another supplied.

The table A is supported upon a stage, 13, which is erected upon thefloor (J of the apartment or the foundation of the machine, whatever thelatter may be; and as I have made provision for leveling the table A, oradjusting it to sloping or irregular floors or foundations, I have inthe accompanying drawings represented the said floor as sloping anddepressed at rear, which is desirable in order that refuse water andliquids may pass off.

To compensate for the inclination or irregularities of the floor 0, I.prefer to dispose the front ends of the lower beams, D,of the stage Bupon metallic blocks, and screw through the said ends of the beam screwsto bear upon said blocks, by which means the irregularities orinclination of the floor is overcome.

In the rear of the table A, l dispose an upright truck, K, whosemovements are guided by a. horizontal rail, L, secured to the rear endsof the beams D and parallel to the edge of the said table. \Vheels M areinterposed between the truck K and rail L to reduce friction, while asecond series of rollers, N, are pivoted to the feet of the truck androll upon or against the front edge of the said rail, and serve asrolling bearings to retain the wheels M in place upon the rail L andovercome the great friction incident to theleverage of the truck overthe upper rail, P, (see Fig. 3,) as afulcrum. I pivot to the adjacentparts of the truck antifriction rollers Q, which travel against the rearedge of the ledge or upper rail, 1.

The trunt'lle-frame It of the carriagem(shown in Figs. 1, 3, 4, 5, 6,and 8) is placed between the side pieces, R R of the horizontal beam Itot' the truck, and has V-shaped hearings to fit corresponding]y-shapedgrooves a in the said side pieces. The carriage, composed of thetrundle-frame It and vertically-adjustable head m to be hereinafterdescribed, is moved longitudinally with relation to the said beam 1% andtransversely of the table by means of a screw-threaded shaft, S, (see Fi3,) held in suitable bearings, 12 c, the said screw fitting a threadednut, c, fixed to the rear part of the trundle-frameofthecarriage.Thescrewshaft Sis rotated by a beveled gear, (I, fixed to its rear end,which beveled gear is engaged and driven by a second beveled gear, a,secured to the upper end of a vertical shaft,f, which is supported inhearings h i, erected on barsj Ir, which unite the side plates orhousing, T T, of the truck K.

To the lower end of shaftfis secured a bevelgear, I, which is engagedand driven by a bevelgear, m, (see Fig. 2,) fixed to the inner end of ashort horizontal shaft, a, supported in a bearing, 0, extended inwardfrom the side plate, T. The shaft or, outside the said housing, hasaffixed to it a spur-gear, p, (see Figs. 2, 10, 11, 12, 13, and 18,)which in its turn is engaged by an intermediate spur-gear, q, mountedloosely on the outer end of a short horizontal shaft, 7, supported in abearing, 8, projecting laterally inward from the housing T alongside thebearing 0, before named, the latter gear, q, being engaged by aspur-gear, t, fixed to a horizontal shaft, a, which is supported in partin abearing, 4;, projecting laterally inward from the housing '1 infront of the bearings 0 s, and at its inner end in a bearing, w, erectedupon the bottom bar, so, of the truck K.

The driving-pulley V, fixed to the outer end of the shaft u, is adaptedto be driven by a band, 3 passed about it from the pulley W, splinedupon the main driven shaft X, having usual fast and loose pulleys, h gThe hub of pulley is providedavith an annular groove, which is embracedby afork, 10, and the said hub is connected with the bearingsleeve 12,pivoted upon a standard, 13, rising from the truck K. The pulley H, tobe hereinafter referred to, is constructed and mounted in like manner,and as the truck is moved horizontally the said sleeves are movedlongitudinally upon the shaft X and move the said pulleys with them. Theshaft X has other bearings, Jet 15 16, pivoted, as herein shown, at theupper ends of the fixed upright columns Y Y.

Rotation of the pulley Vin the proper direction--that is, as shown byits arrow 1 in Fig.

of the drawings-h as the effect, through the agency of the spur-gears pq and t and bevelgears 61, e, l, and m, to rotate the screw-shafts insuch a direction as to cause the trundleframeR of thecarriageand itsconnected parts to move longitudinally in one direction -that is,outward uponthe beam R-while to effect the movement of the frame of thecarriage upon said beam in the opposite or inward direction I mountloosely upon the shaft u, inside of the pulley V, a seconddriving-pulley, A, of equal size with the first, and to adapt thispulley A to rotate such shaft I secure to the latter, outside of thegear t, a spur-gear, a, which engages a spur-gear, b, fixed to the outerextremity of the shalt n outside of the gear 19, before named, andsecured to and revolving with the latter. An idle-pulley, B, looselyincloses the shaft a between the fast pulleys VA, and when the belty isupon this loose pulley B the carriage remains stationary. When the belty is driving the pulley A in the direction of its arrows 3, and by thelatter eli'ecting the inward movement of the carriage, the pulley V andshaft 11, with the gears g and t and shaft 21, rotate in oppositedirections without elfect upon the shaft a and screw-shaft S, saidpulley V and shaft to being put in motion at this time bythe gearpacting upon the gear t through the intermediate gear, q. When the pulleyV is the active one and driving the shafts f and S, and the pulleyA isidle, the latter revolves in the opposite direction loosely about theshaft u by the action of the gear b upon the gear a.

The pulley IV is sufficiently wide to permit of the shifting of the band3 from the pulley V to the pulley A, and vice versa, and to effect thisshifting of the band I employ an arm, d, (see Fig. 2,) which, at itsrear end, is forked and straddles the hand.

To the forked end of the shipper-arm d, I secure the outer end of ahorizontal slide-bar, f, (see Fig. 2,) which extends through the housingT and is supported in bearings g in the top of the shelf 70, beforenamed, and upon the upper inner part of this barf, I cut a toothed rack,71/, which engages a similar rack, i, out upon the lower end of avertical sectoral plate or arm, j, which is pivoted and oscillates upona horizontal pivot, is, secured to a hanger, l, depending from the rearpart of the shelfj above, while upon the upper end of the sectoral platej is cut a toothed rack, m, which engages a similar rack, a, out uponthe lower end of a second sectoral plate, 0, (see Figs. 2 and 18 of thedrawings,) which is secured at its upper end to the rear end of ahorizontal rock-shaft, 11, mounted in bearings qr, erected upon oppositeedges of the said shelf j. Furthermore, to the front end of therock-shaft p, I secure the lower end of a third vibrating sectoral plateor arm, 8, upon the upper end of which I cut a toothed rack, t, thatengages a similar rack, a, out upon the lower end of a fourth vibratingsectoral plate, a, which in turn is secured at its uppcrend to the rearextremity of a long horizontal rock-shaft, W, disposed within the upperpart of the beam R, and supported in bearings in each end of the latter.A rocking of the rock-shaft W in one or the other direction effects,through the agency of the sectoral plates j 0 s 'u and shaft 1), lateralmovements of the shipper-barf, and consequent shifting of the band yfrom the pulley V to the pulley A, or vice versa, or to the centralidle-pulley, B, and to enable the rocking of said shaft W, andconsequent shifting of the band, to be effected'from the front of themachine, I employ a pendent rocker-arm, D, (see Figs. 6 and 19,) whichloosely encompasses the front end of said shaft W, and is adapted toslide freely upon the latter, but is prevented from rotating upon it bya spline, :0, upon the said shaft, which enters a groove, 3 in the head0 of the said arm, while to effect the requisite vibrations of thelatter I employ a horizontal bellcrank lever, E, which is pivoted at itsangle to the front lower part of the trundle-frame, and with the nose ofits shorter arm 2 (which latter is parallel with the axis of therock-shaft W) entering a fork, 0?, in thelower end of said arm 1). Theopposite and free end of the arm 0 of the lever E is connected by a linkand ball-and-socketjoint, (1 (see Fig. 19,) with a pendent guide-lever,F, which is pivoted at its upper end to a tubular hub, f (see Fig. 6,)that encompasses and slides longitudinally upon a long rock -shaft, G,which is guided in hearings in opposite ends of the beam B in mannersimilar to the rock-shaft W, the shaft G being a companion to the shaftW, and being parallelto and preferably in the same horizontal plane withthe latter.

I prefer, for convenience in certain respects, that the guide-lever Fshall move with the carriage. To accomplish this I provide the head orhub 6 of therocker-arm D and of the rockerhub f, to which theguide-lever F is attached, with a peripheral groove, or if, (see Fig.5,) and secure to the adjacent part of the trundleframe of the carriageforked uprights i or j", which enter these grooves, thereby permittingof lateral rocking motions ofthe rock-shafts W and G by thecorresponding movements of the guide-lever, and of sliding movements ofthe IO0kGF-lJL1b6 f longitudinally upon such shafts by and with thetrundle-frame of the carriage. It will thus be seen that an extremeoutward or forward movement of the guide-lever F in alignment with theaxis of the shaft W or G effects by means of the bent lever E a rockingmovement ofthe rock-shaft W and a shipping of the belt y from theidle-pulley B to the fast pulley V, while a reverse or rearward extrememovement or vibration of such lever F effects a reverse rocking of saidshaft W and a shipping of the belt from V to B, it being understood thatthe idle or neutral position of the said guide-lever with respect to therock-shaft W is a mean between its extremes of vibration longitudinallyof said shaft, and when in this position it maintains the belt upon theidle-pulley B.

To move the truck K and its attached parts longitudinally with relationto the table by the guide-lever F, I have provided devices which I willnow describe.

To the rear end of the rock-shaft Gr (see Figs. 2 and 3) I secure apendent sectoral arm, k", upon the lower edge ofwhich I cuta toothedrack, I which engages a similar rack out upon the upper end of a secondsectoral plate, m which in turn is secured at its lower end to the frontend of a horizontal rock-shaft, n mounted in uprights 0 p erected uponopposite sides of the shelf or bar j, before named, while to the frontend of said rock-shaft n, I secure the upper end of a third sectoralplate, 1' upon the lower end of which latter I cut a toothed rack, 8that engages a similar rack cut upon the upper end of an oscillating armor fourth sectoral plate, t, which is pivoted on a stud, if, to thefront side of a hanger, 0*, depending from the rear side of the shelf j,the lower end of this oscillating arm t having a toothed rack, to", thatengages a similar rack out upon the upper edge of a horizontal slidehar,:0 which slides within bearings 3 upon the top of the shelf 70, beforenamed, the said slide-bar extending through the adjacent housing, T, ofthe truck and being secured to the rear end of a shipper-arm, 2 which inturn is securedat its frontend. to the horizontal stopmotion rod 0,before named, this rod sliding in hearings in the lower part of thetruck, as will be hereinafter described.

The shaft G, sectoral arms k m 0' and t rock-shaft n slide-bar m andshipper-arm 2 are duplicates of like parts upon the opposite side of thetruck, as hereinbefore described, except that the rod 0 does not actuatethe forked arm (1.

Upon the main shaft X, outside of the housing T, is secured a pulley, H,and about this pulley is passed a band, a (see Figs. 2, 3,14, 15, 16,and 17,) which is also passed about an idle-pulley, D which looselyencompasses a horizontal shaft, 0", supported in bearings d projectinglaterally inward from the lower part of the housing T, this shaft 0being in alignment with the shaft a, before named, and having its innerend stepped in the same standard, 10.

To the extreme outer end of the shaft 0 and outside of the idle-pulleyN, is affixed a driving-pulley, 0 while upon the inside of the saididle-pulley b 1 mount loosely upon the same shaft a driving-pulley,f

To the shaftc immediately outside of the housing T, I secure aspur-gear, 9 While engaging this gear I employ an intermediatespur-gear, h, which is placed loosely on the outer end of a shorthorizontal shaft, i mounted in bearings j projecting inward from thehousing T; and engaging this last gear is a third gear, k, which issecured to the outer end of a second short horizontal shaft, l mountedin hearings on, extending inward from the housing T above the shaft iThe inner end of this shaft 1 is extended inward to the center of thetruck, and has affixed to it a spur-gear, m wh'ch engages anintermediate spur-gear. it, placed loosely on the inner end of a thirdshort horizontal shaft, 0 mounted in bearin gs 1J3, projecting inwardfrom the housing T in front of the shaft l This last-named gear, a, inits turn engages a spur-gear, q, secured to or making part of a nut, rplaced upon and engaging the threads of a long screw-threaded r0d,sfixed at its ends in brackets t t, projecting outward from the columns YY, and immediately in rear of and below the table of the machine. Thenut 1* (see Figs. 2, 3, and 9) is confined between hangers a a dependingfrom the front part of the shelf of the truck. Consequently rotation ofthe said nut on the stationary screw-threaded rod 8 causes the truck tobe moved on the rails L and P in one or the other direction, accordingto the direction in which the nut is turned.

Revolutions of the pulley e in the direction of its arrow 4, shaft 0gears 9 h, k, m, n, and (1 effect by means of the nut r and. screwrod 8the movement of the truck in one direction upon its rails L and P-thatis, in the direction of the arrow 2 in Figs. 2 and 4 of the drawings. Toeffect the opposite movement of the truck upon itssupporting-railsthatis, in the direction of arrow 6 in said Figs. 2 andet--I aflix to the inside of the inner pulley, f, a spur-gear, a whichengages a spur-gear, w, secured to the outer end of the shaft l beforenamed. Revolutions of the pulley f effect, through the gears v M,rotations of the nut r in a direction opposite to that first described.Hence the truck is moved in the direction of its arrow 6, (see Figs. 2and 4 of the drawings,) the pulley and the gears 9 h, and k rotating atthe same time in opposite directions without effect upon the nut r.

The arrangements of the pulleys b 0 and f and the gears 9 h, k, 01 and ware the same as the corresponding parts upon the opposite side of thetruck, but are devoted to moving the truck upon its rail, while theopposite ones aid in moving the trundle'frame of the carriage upon itsways or guides in the beam R.

A rocking movement of the shaft G to the extreme in one or the otherdirection effects, through the agency of the sectoral arms W, m 0*, andt, rock-shaft n slide-bar m and shipper-arm 2 as before explained, theshifting of the band a from one to the other of the pulleys 0 f alsoeffects corresponding movements ofthe truck longitudinally of the table;and to effect the requisite rocking movements of said shaft G theguide-lever F is to be vibrated laterally only. To maintain the truckand the carriage at rest the position of the guide-lever F is a meanbetween its extremes of vibration. To enable the truck to be stoppedautomatically as it arrives at the end of the rails, should theattendant fail to do so, the stop-motion rod 0 is of such a length thatwhen the truck reaches the extreme of its movements the rod abutsagainst the adjacent column, Y or Y, and, being fixed to shipper-arm 2'shifts the belt a to the idle-pulley D The tool-carrier f, the guide-rodg, on which it is reciprocated, and the yoke h, common to my saidpatent, are supported by the head m of the carriage, the said head beingcomposed of an annular horizontal plate, I, upon which are erected postsa a, &c., that slide vertically in guides b &c., in the corners of thetrundle-frame, the upper and lower ends of these posts being united bycross-bars c 0 850., d d, &c., which in turn are united by a centraltubular hub, 00 which surrounds a vertical shaft, J, the upper end ofthis shaft being contained within the hub of a spur-gear, a to behereinafter described, such gear being compelled to rotate with theshaft by a spline-andgroove connection between the two, and beingsupported in an arched cross-head or bridge, 3 which constitutes the topof the trundleframe, the said shaft J following the vertical movementsof the carriage-headm The vertical movements of this carriage and itsattached parts in the trundle-frame, produced as will be hereinafterdescribed, enable me to fix the beam B rigidly to the truck, thusgaining greater ease and steadiness of motion, and consequently a nicerdegree of accuracy in the working of the usual tools of thetool-carrier.

To the lower end of shaft J is fixed a crank, 2", which embraces (seeFig. 3) a fixed central stud of a gear, a constituting an epicycle,which travels within and engages the teeth of an epicycloidal wheel, bupheld by a ring, a, connected with the yoke It, provided with anannular portion, 0 which enters arabbet, d atthe under side of anannular portion, 1, of the head of the carriage. The yoke b has acentral hub, e, which surrounds the shaft J. The yoke and its attachedparts rise and fall with the head of the carriage, and at the same timerotate within the said head. The gear a, at its under side, has a studor wrist-pin, d which engages the upper end of a stud, e, of thetool-carrier f, adapted to slide upon the guide-rod held by the saidyoke.

The epicycloidal gearing herein described and shown operatescontinuously, but reciprocates the tool-carrier with its tool upon theguide rod 9 only while the guide-rod and the yoke h are held or lockedfirmly, the direction of the right-line reciprocations of the saidtool-carrier depending upon the direction of the guide g In practice theyoke h is provided with a suitable hand-wheel, 22, (see Figs. 1, 3, and4,) by which the yoke may be moved axially by the operation to place theguiderod in the desired direction; but should the operator fail tolockthe yoke h in position or hold it firmly by the said hand-wheel the saidyoke and its guide-rod, with its hand-wheel, would be rotatedcontinuously by the shaft J and the epicycle a without reciprocating thetool-carrier. The annular portion 0 of the yoke is provided with aseries of notches, j, (see Fig. 4,) engaged by a suitable latch, pivotedupon a horizontal ear, I, of the plate 1 of the, head of the carriage,the said latch locking the yoke in position. When it is desired tochange the direction of the guide-bar the latch k is disengaged from thenotched portion 0 of the yoke, and is held by the pivoted catch m, actedupon by spring 23. (See Fig. 1.)

When the strokes of the tools are to be repeated several timesin thesame direction the handle of the catch is raised and that of the latchelevated by the spring 23, interposed between the two, the nose of thelatch being thereby forced into one of the notches j before named, andthe yoke, with the hand-wheel, is thus locked to the annular plate I ofthe head of the carriage. My object in thus locking the yoke andhand-wheel is to relieve the attendant from the manual labor of holdingthe guide-bar g in a fixed position, which is essential to impartrectilinear motion to the tools.

The tool-holders 0 p pivoted to the toolcarrier f will be lifted fromthe skin during their backward stroke, as and for the purposes describedin my patent referred to, the devices herein employed for such purposebeing substantially the same as in the said patent. So they need not beherein further described.

When it is desired that the toolcarrier, with the dressing-tools, bemoved diagonally across the table, it is necessary to simultaneouslymove both the carriage on the beam It and the truck K on its rails. Thisis accomplished by moving the handle of the guide-lever F in thedirection it is desired the tool-carrier to take, such movementot' thesaid guide-lever simultaneously turning the rock-shafts G W, causing thebands to rotate such two of the pulleys A, 6 V, orf hereinbeforedescribed, which itis necessary to rotate to insure the proper directionof movement of the parts. This hand-operated guide-lever F, the positionof which determines the direction of movement of the toolcarrier andtools, and the position of the dressin g-tools with relation to theskin, greatly simplifies the labor of the attendant, places the machinemore perfectly under his control, and consequently enables more andbetter work to be done.

Pivoted within the trundle-frame R at 24 are toothed levers g r, adaptedto be engaged by the vertical-toothed racks 10 guided in grooves 00 inthe side pieces of the carriagehead hi as shown in Figs. 4, 7, and 8.The levers g r are pivoted at 82 on the sides of the carriage-head, andas they are moved by the racks 10 about the centers 24 lift thecarriage-head positively.

Each toothed rack 10 is operated by a bent lever, 3 or 2 which ispivoted at its bend to the carriage-head m and has the end of its IOOhorizontal arm a converted into gear-teeth, which engage similar teethupon the inside of the said toothed rack, while upon the lower end ofits arm a is cut a toothed rack, which engages a similar rack out uponthe upper edge of a horizontal slide-bar, b which is disposed below thelever and slides in suitable ways in the lower cross-beams of thecarriage-heath the slide-bar being forced inward or outward by ahorizontal screw-sh aft, (For 0, each ofwhich is mounted in a bearing, forf erected upon opposite sides of the annular plate I, and operated bya spur-gear, g or k, secured to its outer end, which engages and isdriven by a pinion, t or j, secured to one end of a horizontal shaft,which in turn is mounted in the bearings f before named. The shaft k(see Figs. 1, 3, and 8) is put in rotation by a bevel-gear, Z affixedcentrally to it, which ongages a second bevel-gear, m fixed to the rearend of a second horizontal shaft, a, carrying at its front enda-hand-wheel, 0 which extends forward in front of the plate I of thecarriage-head into a position to be readily seized by the attendant. Byseizing the handwheel o and rotating the shaft n in one direction theoperator is enabled, by rotating the screws d c and actuating the leversf 2", to raise the plate I of the carriagehead, and with it thetool-carrier and its operating mechanism and dressing-tools with respectto the table, in order to permit of introduction or removal of a skin,or to vary the degree of pressure of the tools upon such skin, while areverse movement of the hand-wheel and its shaft results in a loweringof the tool-carrier and dressingtools.

To put the shaft J in rotation I swivel within the upper part or head,y, ofthe trundleframe of the carriage the hub 20 of a bevel-gear, c,whichincloses the upper end of said shaft, and is connected with it by asplineaiul-groove connection, which compels the two to rotate together,but permits the shalt to slide vertically within the hub, the said gearbeing engaged and driven by a second bevel-gear, 20 secured to the shaftx, which is disposed in the beam It, parallel with the rock-shafts G \V.The shaft :0 has bearings y z erected upon the front and rear ends ofthe beam It. The connection between the gear 10 and shaft 00 is a splineand groove, in order that the gear, while rotating with and being drivenby the shaft, may slide longitudinallyupon the latter by and with thetrundleframe of the carriage in either direction, the gear 10 beingconnected with the trundle-frame of the carriage by being confinedbetween two uprights, a b erected thereon.

To the rear end of the shaft :0, Iaffix a bevelgear, 0 which engagesandis driven by a similar gear, (1 the hub of which incloses the shaft X,before alluded to, and is connected with it by a spline-and-grooveconnection, 0, the gear and its hub being compelled to slidelongitudinally upon the shaft X by uprightsfZ/" erected upon the extremeupper part of the truck.

To the extreme end of the shaft X, outside of the column V, I securefast and loose pulleys g If, and operating with these pulleys I employan endless band leadingto a main driving-pulley, a shipper-bar, isuitably supported, being employed to ship the belt as occasionrequires.

To automatically arrest the traverse in either direction of the carriageupon the beam B, should the attendant fail to do so, I employ ahorizontal shipper-rod, 1), arranged parallel to the rocker-shafts G W,and playing at its rear end in a bearing in the trundle-frame of thecarriage, the front end of this shipper-rod being affixed to the upperpart of a post, 0", erected upon the lever E, before named. As thecarriage reaches the extreme of its movements or traverses in eitherdirection the rod 12 abuts against the adjacent end bar, s or t, of thebeam, and the lever E is turned upon its fulcrum, thereby rocking theshaft 'W and shifting the belt y to the idle-pulley B.

To provide a shifting or adjustable bearing for the shaft X at pointsintermediate between the truck and columns Y Y upon either side of suchtruck, in instances where along operating-table is employed, I provide ahorizontal SlldG'b8I,j which plays in guides or bearings It in the upperpart of the truck, and is arranged parallel with the shaft X, astandard, 1 or m being erected upon each end of this bar andinclosingthe shaft. The space between the standards l m" is greater thanthe width of the truck. Hence when such truck moves in either directionupon its rail it abuts against the standard in front of it and forces itbefore it, the opposite standard following after and providing atraveling or shifting bearing to support the shaft X.

Having thus explained the nature and operation of my improt'ements, Iclaim, and desire to secure by Letters Patent, the following:

1. In a machine for dressing leather, a table or support for the skinand the truck and beam, combined with a carriage composed of atrundle-frame and a vertically-ad justable head therein, adapted tosupport the guide-rod for the tool-carrier, substantially as and for thepurposes described.

2. Thctruck audits beam, the trundle-frame of the carriage,movablethereon, and the vertically-adjustable head mounted in the trundleframe,combined with the yoke, its guide-rod, the tool-carrier, and with meansto reciprocate the tool-carrier upon its guide-rod while the yoke andguide-rod are locked or held in position.

3. In aleather-dressing machine, the combination of a screw-shaft withand to operate the carriage transversely of the table to effect thetraverse of the dressing-tools and their operative devices transverselyof the table.

4. The truck and its beam, provided with guides or ways and the carriagefitted thereto, combined with the screw-shaft and means to rotate it,whereby the carriage is moved positively.

5. The skin-supportin g table and the truck,

nut and serewto move the truck longitudinally of the table, combinedwith thecarriage and a screw to move the carriage transversely of thetable, substantially as described.

7. A leather-dressing machine containing the followinginstrumentalities, viz.: a skinsupporting table, a truck, means to movethe truck longitudinally of the table, an independently-movablecarriage, which by its change of position places the dressing-tools inthe desired position with relation to the table, means to move the saidcarriage transversely of the table, and a single guide-lever andconnections between it and the devices which directly control themovements of the truck and carriage,

whereby the said single guide-lever, by moving it more or less in one orthe other direction, insures the separate or joint movement of the truckand carriage in either of their directions, substantially as and for thepurposes described.

8. In a leather-dressing machine, the skinsupporting table, the truckand the carriage movable thereon, and the shaft J of the carriage,adapted to impart reciprocating move- 0 ments to the tool-carrier anddressing-tools,

combined with the shaft X and shaft as, and intermediate gearing todirectly and positively drive the said shaft J in all the positions ofthe truck and carriage and dressing-tools with relation to the table,substantially as described.

9. In aleather-dressing machine, the trundleframe of the carriage,combined with the vertically-adjustable head therein, adapted to supportthe shaft J, and also the yoke and guide- 0 rod for the tool-carrier,substantially as described.

10. In a leather-dressing machine, the truck, the trundle-frame of thecarriage, and the vertically-adjustable head therein, combined with theaxially-movable yoke and its guide-rod,

substantially as described.

11. The skin-supporting table, the truck, the trundle-frame movable onthe truck, and the head fitted to move in the trundle-frame, combinedwith the shaft a and intermediate mechanism to adjust the headvertically in the trundle-frame, substantially as and for the purposedescribed.

12. In a machine for dressing leather, the

5 head of thecarriage,thesectoral toothed plates or levers pivotedthereon and connected at their outer ends with the trundle-frame, andthetoothed rackswflcombined with thetoothed bell-crank levers, and meansto operate them simultaneously, substantially as described.

13. The rock-shafts G W, extended through the beam B, combined with theguide-lever and with connecting mechanism between the said lever androck-shafts to enable the said. lever to turn them in the properdirections to ship the belts, substantially as described.

14. The guide-lever and the rock-shaft G,

actuated by it, combined with the belt-shipper 2 and intermediatemechanism, whereby the beltd maybe shifted to control the movements ofthe truck in one or the other direction, substantially as described.

15. The guide-lever and the rock-shalt W actuated by it, combined withthe belt-shipper and intermediate mechanism,wherebythe belt 3 may beshifted to control the movement of the carriage transversely of theskin-supporting table, substantially as and for the purpose described.

16. The combination, in a leather-dressing machine, of the beam of thetruck, the carriage thereon, the screw-shaft S to move it on the beam,the belt 3 belt-shipper d, and the fast and loose pulleys with which thesaid belt co-operates to effect the rotation of the said screw,substantially as described.

17. In a leather-dressing machine, shaftsX and w located at right anglesto each other, combined with intermediate gearing, the reciprocatingdressing-tools, the traveling carriage and the pulleys, the truck havingbeam B, and table, said truck, carriage, and tools being operated by therotation of the said shafts, substantially as described.

18. In a leather-dressing machine, the pulleys A B V b 0 f the belts yand a the stop-rod c, and shipper-arm e thelatter guiding the belt a andbeing secured to and moving with the rod, substantially as described.

19. In combination, the rod 0, shipper-arms d 42 toothed bars f M, androck-shafts W G, with suitableintermediatemechanism,whereby the rockingof either shaft tends to move the shipper-arms in one or theotherdirection, substantially as described.

20. The combination, in a leather-dressing machine,-of the truck andbeam, the carriage, and driving-shaft X, pulleys WV and H, therock-shafts G W, and suitable intermediate mechanism, whereby thecontinuous rotation of the said pulleys in one direction effects therotation in either direction of the devices which engage and move thetruck on its rails and the carriage on the truck, substantially asdescribed.

21. The combination of the rock-shaft W and screw-shaft S, the truck,itsbeam, and the trundle-frame of the carriage, combined with intermediatemechanism, whereby the said screw-shaftis rotated to move thetrundle-frame upon the truck, and the rock-shaft is enabled to controlthe rotations of the said screw-shaft, substantially as described.

22. In combination, the truck and its beam, the carriage, therock-shafts G W, the screwshaft S and screw-rod 8 not 1*, theguide-lever F, and suitable connecting mechanism, whereby saidguide-lever controls the rotation of the shalt Sand nutr and of themovements of the truck and of the carriage on the truck, substantiallyas described.

23. The rock-shaft W and connected lever E, and the carriage, combinedwith the shipper-rod 1), connected with the said lever, whereby as therod 1) is moved in the carriage as the positions the said arm z movesthe belt a upon 10 latter reaches its extreme positions the belttheidle-pulley b and stops the movement of shipper d is moved to ship thebelt y upon the the truck, substantially as described. loose pulley Band stop the movement of the In testimony whereof I aflix my signaturein carriage, substantially as described. presence of two witnesses.

24. In aleather-dressing mael1ine,the truck, I FREDERIC A. LOCKWOOD. theloosely-held stop-motion rod c,and its con- Witnesses: neoted arm 2'whereby as the rod 0' is moved H. E. LODGE, on the truck as the latterreaches its extreme 7M. '1. ANDREWS.

